1. Pearl River Water Resources Research Institute, Guangzhou, China
2. Key Laboratory of the Pearl River Estuary Regulation and Protection of Ministry of Water Resources, Guangzhou, China
3. Guangdong Research Institute of Water Resources and Hydropower, Guangzhou, China
4. Engineering and Technology Research Center for Agricultural Land Pollution Integrated Prevention and Control of Guangdong Higher Education Institute, College of Resources and Environment, Zhongkai University of Agriculture and Engineering, Guangzhou, China
5. Department of Ecology, Jinan University, Guangzhou, China